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Stockholders' Equity (Public Offering) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		12 Months Ended
	Aug. 07, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Subsidiary, Sale of Stock [Line Items]
Payments made for costs related to common stock issuances		$ 0	$ 329	$ 415
Public Offering
Subsidiary, Sale of Stock [Line Items]
Shares Issued	50,875
Gross Proceeds Per Share	$ 7.78
Gross Proceeds	$ 395,807
Shares issued (in shares)	875
Payments made for costs related to common stock issuances	$ 6,400

X

- Definition

The cash outflow for cost incurred directly with the issuance of an equity security.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
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- Definition

Amount of consideration received by subsidiary or equity investee in exchange for shares of stock issued or sold. Includes amount of cash received, fair value of noncash assets received, and fair value of liabilities assumed by the investor.

+ References

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- Definition

The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

+ References

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- Definition

Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

+ References

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Number of new stock issued during the period.

+ References

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-Name Accounting Standards Codification
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-SubTopic 10
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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